Thermos® Light & Compact Stainless Steel Vacuum Insulated Flask 350ml – Midnight Blue

Brand: Thermos®
Product Type: Vacuum Insulated Flask
Capacity: 350ml
Color: Midnight Blue
Body Material: 18/8 Stainless Steel
Interior Material: 18/8 Stainless Steel
Insulation: TherMax™ Vacuum Insulation
Inner Coating: None
Stopper Material: BPA-Free Plastic
Stopper Type: Push-Button Valve
Serving Cup: Stainless Steel Exterior with Food-Safe Plastic Interior
Seals/Gaskets: Food-Grade Silicone Rubber
Design: Light & Compact

The Thermos® Light & Compact Stainless Steel Vacuum Insulated Flask 350ml

is a compact and durable flask designed for convenient everyday use. Made with premium 18/8 double-wall stainless steel and Thermos® TherMax™ vacuum insulation technology, it helps maintain beverage temperature while remaining lightweight and easy to carry. A push-button stopper, stainless steel serving cup, and food-grade silicone seals provide practical, leak-resistant performance.

Introduction

The Thermos® Light & Compact 350ml Flask is designed for people who want reliable temperature retention in a compact format. Its 350ml capacity makes it ideal for carrying coffee, tea, water, or other beverages to work, school, travel, or outdoor activities without taking up much space.

The flask features premium 18/8 double-wall stainless steel with no inner chemical coating, combined with vacuum insulation using Thermos® TherMax™ technology. The integrated push-button valve makes serving convenient, while the stainless steel outer cup provides a practical drinking solution. Food-grade silicone seals help create a secure, leak-resistant closure for everyday transportation.

Key Materials Overview

Premium 18/8 Stainless Steel

The flask uses 18/8 stainless steel for both the body and interior, providing a durable, corrosion-resistant construction without an inner chemical coating.

TherMax™ Vacuum Insulation

The vacuum-insulated air space between the stainless steel walls minimizes heat transfer, helping beverages retain their temperature for longer.

Push-Button Stopper

The BPA-free plastic stopper features an integrated push-button valve that allows convenient opening and controlled pouring.

Stainless Steel Serving Cup

The included cup features a stainless steel outer shell with a food-safe plastic inner lining, providing a practical way to serve and drink beverages.

Food-Grade Silicone Seals

Silicone gaskets help create a secure seal and reduce the risk of leakage during transportation.

Comparison Section

Thermos® 350ml Flask vs 1100ml Travel Mug

The 350ml flask is significantly more compact and convenient for smaller beverage portions, while the 1100ml travel mug is better suited to extended hydration and frequent drinking throughout the day.

Thermos® 350ml Flask vs Regular Bottle

The vacuum-insulated flask provides better temperature retention than a standard non-insulated bottle while offering a compact and durable stainless steel design.

Thermos® 350ml Flask vs Large Vacuum Flask

The 350ml model prioritizes portability and convenience, whereas larger flasks are more appropriate when you need to carry several servings of a beverage.

Health Boutique Expert Insight

A compact insulated flask can be particularly practical for short commutes, office use, school, or travel when a full-size bottle is unnecessary. 18/8 stainless steel provides durable, corrosion-resistant construction, while vacuum insulation helps reduce temperature transfer. Regularly cleaning the stopper, silicone seals, and serving cup is important for maintaining good hygiene.

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🛒 Order Thermos® Light & Compact Stainless Steel Vacuum Insulated Flask – 350ml Midnight Blue today from HealthBoutiqueJo.com

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💙 Compact, durable, and insulated for conveniently carrying your favorite hot or cold beverages wherever you go.

Compact 350ml capacity for convenient daily use.
Premium 18/8 double-wall stainless steel construction.
TherMax™ vacuum insulation helps maintain beverage temperature.
No inner chemical coating.
Lightweight and compact design for easy carrying.
Integrated push-button valve for convenient pouring.
Includes a practical serving cup.
Food-grade silicone seals help provide leak-resistant closure.
Suitable for work, school, commuting, and travel.
Durable reusable alternative to disposable beverage containers.

Why Customers Choose This Product

The Thermos® Light & Compact Flask combines compact portability, stainless steel durability, and vacuum insulation in a convenient 350ml format, making it especially useful when you want temperature-controlled beverages without carrying a large flask.

Who Is It Suitable For?

Office workers.
Students.
Commuters.
Travelers.
People who prefer smaller beverage portions.
Outdoor and everyday users.
Anyone looking for a compact insulated flask.

Who May Prefer Another Product?

Those who need a larger volume for extended hydration may prefer a 750ml–1L insulated bottle or travel mug.

Wash the flask and cup before first use.
Fill with your preferred hot or cold beverage.
Avoid overfilling to allow the stopper to close properly.
Secure the stopper firmly.
Use the push-button valve to pour the beverage.
Use the included serving cup for drinking.
Clean the flask, stopper, cup, and seals thoroughly after use.
Follow the manufacturer's care instructions.

Premium 18/8 Stainless Steel, TherMax™ Vacuum Insulation, Push-Button Stopper, Stainless Steel Serving Cup, & Food-Grade Silicone Seals

What is the capacity of the Thermos® Light & Compact Flask?

The flask has a 350ml capacity.

Is it made from stainless steel?

Yes. Both the body and interior use premium 18/8 double-wall stainless steel.

Does the flask have an inner coating?

No. The interior is stainless steel without an inner chemical coating.

What is TherMax™ technology?

TherMax™ is Thermos® vacuum insulation technology that uses an insulated airless space between the flask walls to minimize heat transfer.

Does it have a push-button opening?

Yes. The stopper includes an integrated push-button valve for convenient pouring.

Does it include a cup?

Yes. The flask includes a serving cup with a stainless steel outer shell and food-safe plastic inner lining.

Is the stopper BPA-free?

Yes. The stopper is specified as BPA-free plastic.

Are the seals food-safe?

Yes. The seals and gaskets are made from food-grade silicone rubber.

Is it suitable for hot and cold beverages?

Yes. The vacuum-insulated construction is designed to help maintain beverage temperature for both hot and cold drinks.

Is it suitable for travel?

Yes. Its compact 350ml size makes it convenient for commuting, school, work, and travel.

What does 18/8 stainless steel mean?

18/8 stainless steel generally refers to stainless steel containing approximately 18% chromium and 8% nickel. It is valued for durability and resistance to corrosion.

What is Thermos® TherMax™ insulation?

TherMax™ is Thermos® vacuum insulation technology designed to reduce heat transfer between the inside and outside of the flask, helping maintain beverage temperature.

Is the flask suitable for coffee?

Yes. Its vacuum-insulated stainless steel construction is suitable for carrying coffee and other hot beverages.

Can I use it for cold water?

Yes. It can also be used for cold beverages and helps maintain their temperature.

Why is the 350ml size useful?

The compact capacity is convenient when you only need one smaller serving and want a flask that is easy to carry in a bag or during commuting.

Is the Thermos® Light & Compact 350ml Flask suitable for everyday use?

Yes. Its durable stainless steel construction, compact design, push-button stopper, and serving cup make it practical for everyday work, school, commuting, and travel.

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